AT296744B - Verfahren zur Herstellung von Holzzellstoff - Google Patents
Verfahren zur Herstellung von HolzzellstoffInfo
- Publication number
- AT296744B AT296744B AT446170A AT446170A AT296744B AT 296744 B AT296744 B AT 296744B AT 446170 A AT446170 A AT 446170A AT 446170 A AT446170 A AT 446170A AT 296744 B AT296744 B AT 296744B
- Authority
- AT
- Austria
- Prior art keywords
- production
- wood pulp
- pulp
- wood
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/10—Physical methods for facilitating impregnation
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AR22215069 | 1969-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT296744B true AT296744B (de) | 1972-02-25 |
Family
ID=3461648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT446170A AT296744B (de) | 1969-06-12 | 1970-05-19 | Verfahren zur Herstellung von Holzzellstoff |
Country Status (12)
Country | Link |
---|---|
AT (1) | AT296744B (de) |
BE (1) | BE750832Q (de) |
CH (1) | CH510782A (de) |
DE (1) | DE1951816A1 (de) |
DK (1) | DK128020B (de) |
ES (1) | ES379819A1 (de) |
FR (1) | FR2052427A5 (de) |
GB (1) | GB1300668A (de) |
IE (1) | IE34287B1 (de) |
IS (1) | IS861B6 (de) |
NL (1) | NL7007213A (de) |
SE (1) | SE362452B (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE458690B (sv) * | 1986-11-06 | 1989-04-24 | Sunds Defibrator | Saett att framstaella mekanisk massa fraan lignocellulosahaltigt material i styckeform med en laengd i fiberriktningen av minst 200 mm |
-
1969
- 1969-10-14 DE DE19691951816 patent/DE1951816A1/de not_active Withdrawn
-
1970
- 1970-05-05 GB GB2158470A patent/GB1300668A/en not_active Expired
- 1970-05-08 IS IS1930A patent/IS861B6/is unknown
- 1970-05-13 IE IE62370A patent/IE34287B1/xx unknown
- 1970-05-19 AT AT446170A patent/AT296744B/de not_active IP Right Cessation
- 1970-05-19 ES ES379819A patent/ES379819A1/es not_active Expired
- 1970-05-19 DK DK253970A patent/DK128020B/da unknown
- 1970-05-19 NL NL7007213A patent/NL7007213A/xx unknown
- 1970-05-20 SE SE691770A patent/SE362452B/xx unknown
- 1970-05-22 BE BE750832D patent/BE750832Q/xx active
- 1970-05-22 CH CH761070A patent/CH510782A/fr not_active IP Right Cessation
- 1970-05-25 FR FR7018991A patent/FR2052427A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IS861B6 (is) | 1974-05-22 |
GB1300668A (en) | 1972-12-20 |
DK128020B (da) | 1974-02-18 |
CH510782A (fr) | 1971-07-31 |
ES379819A1 (es) | 1973-02-01 |
SE362452B (de) | 1973-12-10 |
BE750832Q (fr) | 1970-11-03 |
IS1930A7 (is) | 1970-06-03 |
IE34287L (en) | 1970-12-12 |
DE1951816A1 (de) | 1970-12-23 |
IE34287B1 (en) | 1975-04-02 |
NL7007213A (de) | 1970-12-15 |
FR2052427A5 (de) | 1971-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |